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🏭 Industrial Electrical Conversion · Three-Phase & Single-Phase

38 kW to Amps at 240V Single-Phase AC (NEC)

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 38 kW on a 240V Single-Phase AC (NEC) circuit.

Line Current (0.85 PF)186.27 AAt 1.0 PF: 158.33 A
Active / Apparent Power38.0 kW44.71 kVA · 23.55 kVAR
Recommended Breaker250 A (NEC)200 A (IEC Nominal)
Recommended Copper Wire3/0 AWGIEC Metric: 70 mm²

Engineering Breakdown for 38 kW at 240V

Input Rating38 kW (240V Single-Phase AC (NEC))
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)186.27 Amps
Amperage at 1.00 Power Factor (Resistive Load)158.33 Amps
Real Power (kW / Watts)38.0 kW (38,000 W)
Apparent Power (kVA) & Reactive Power (kVAR)44.71 kVA / 23.55 kVAR
Equivalent Mechanical Horsepower (HP)50.96 HP
NEC 125% Continuous Circuit Breaker250 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)3/0 AWG (NEC) / 70 mm² (IEC)

Frequently Asked Questions

How many amps is 38 kW at 240V (1-Phase)?

At 240V Single-Phase AC (NEC), 38 kW equals 186.27 Amps at an industrial power factor of 0.85 (or 158.33 Amps at unity power factor 1.0).

What size breaker and wire is needed for 38 kW at 240V?

For 186.27A continuous load, NEC requires a 125% rated breaker of 250A with 3/0 AWG copper conductors, while IEC standard sizing uses a 200A breaker with 70 mm² copper cable.

Other Power Ratings & Voltages

5 kW at 240V (1P)10 kW at 240V (1P)15 kW at 240V (1P)20 kW at 240V (1P)25 kW at 240V (1P)30 kW at 240V (1P)45 kW at 240V (1P)50 kW at 240V (1P)75 kW at 240V (1P)100 kW at 240V (1P)150 kW at 240V (1P)200 kW at 240V (1P)250 kW at 240V (1P)500 kW at 240V (1P)38 kW at 120V Single-Phase AC38 kW at 208V Single-Phase AC38 kW at 230V Single-Phase AC (IEC)38 kW at 208V Three-Phase AC38 kW at 230V Three-Phase AC38 kW at 400V Three-Phase AC (IEC Europe)38 kW at 415V Three-Phase AC (UK / AU)38 kW at 480V Three-Phase AC (US Industrial)38 kW at 600V Three-Phase AC (Canada / Heavy)38 kW at 24V DC Direct Current38 kW at 48V DC Battery / Telecom Bus